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For sealing gaps around internal window and door frames, cornices, plasterboard, sidings, vents, and tiles, Gap Filla Acrylic Sealant provides a flexible seal where rigid fillers are prone to cracking and falling out.
Gap Filla is an acrylic polymer sealant that cures through water evaporation into a smooth, flexible joint. It is formulated to accommodate up to 5% dynamic movement, allowing it to withstand minor settlement and thermal shifts without releasing the bond. The cured sealant is paintable and can be cleaned up with water during application, making it suitable for multi-trade interior finishing work.
This sealant forms an adhesive bond on common construction substrates, including:
Yes, Adheseal Gap Filla is designed for sealing joints around window and door frames, cornices, and plasterboard. Its flexible acrylic formulation helps prevent cracking, and it is fully paintable once cured.
No, Adheseal Gap Filla is not recommended for continuous water immersion. It is best suited for interior gaps or exterior areas not subject to constant moisture exposure.
Adheseal Gap Filla accommodates dynamic movement of +/- 5%. This flexibility helps prevent cracking in static joints that experience minor structural shifts, outperforming more rigid fillers.
| Application | Key benefit | Primary trades |
|---|---|---|
| Sealing window and door frames | +/- 5% dynamic movement prevents cracking from minor structural shifts. Paintable finish for seamless integration. | Carpenters, Painters, Builders |
| Filling gaps in cornices and plasterboard | Flexible acrylic formula reduces callbacks from plaster or paint cracking. Water clean-up for efficient site work. | Plasterers, Painters |
| Sealing joints in sidings and vents | Good adhesion to wood, metal, and concrete. Accommodates slight thermal movement for exterior finishes. | Builders, Roofers |
| Gaps around tiles | Prevents grout cracking in non-wet areas. Adheres well to ceramic and concrete substrates. | Tilers, Renovators |
A successful, long-lasting seal starts with a properly prepared surface. This step is critical to ensure maximum adhesion.
Ensure the joint is completely clean, dry, and free from all dust, dirt, oil, grease, and loose or flaking paint. Use a brush or vacuum to remove all dust.
Apply and finish the sealant bead for a smooth, professional result.
Cut the nozzle at a 45° angle to the desired bead size. Using a caulking gun, apply a steady, continuous bead of sealant into the joint, ensuring it fills the entire gap.
Immediately after application, tool the bead with a wet finger or a clean spatula to create a smooth, concave surface and ensure intimate contact with the substrates.
Final steps for a clean job site and a perfect painted finish.
Clean up any excess sealant from surfaces and tools immediately using a damp cloth. Once cured, the sealant must be removed mechanically.
Once the sealant is fully cured (allow 24-48 hours), it can be painted over with most conventional water or oil-based paints.
Warning: Causes skin irritation. May cause an allergic skin reaction. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause damage to organs through prolonged or repeated exposure. Classified as a Schedule 5 Poison (Caution).
Wear gloves (Nitrile Rubber suggested), apron, safety glasses, and a respirator (organic vapour/particulate type if inhalation risk exists).
Ensure adequate ventilation to maintain air concentrations below exposure standards. Use only in well-ventilated areas.
Store in a cool, dry, well-ventilated place, out of direct sunlight and away from foodstuffs. Keep containers standing upright and closed when not in use. Shelf life is 12 months in original packaging when stored between 10°C and 35°C. Dispose of contents and container according to local regulations; do not allow product to reach ground water or sewage systems.
Proper surface preparation is crucial for effective adhesion and long-term performance. This guide covers common substrates for Adheseal Gap Filla.
Surface prep: Ensure all surfaces are clean, dry, and free from dust, grease, loose particles, and old sealant. For porous substrates, ensure they are sound and stable.
Primer: Not required for most common building materials like glass, ceramic, wood, brick, metal, and concrete when clean and dry.
| Property | Value |
|---|---|
| Product Name | Adheseal Gap Filla |
| Type of Product | Acrylic Polymer |
| Curing System | Water Evaporation |
| Consistency | Smooth Paste |
| Colour | White |
| Density (Specific Gravity) | 1.50 g/cm3 |
| pH | 7 - 9 |
| Application Temperature | +5°C to +35°C |
| Dynamic Movement | +/- 5% |
| Tack Free Time at 25°C | 15 - 20 minutes |
| Cure Time at 25°C | 24 - 48 hours |
| VOC Content | < 1 g/L |
| Clean Up | Water |
| Shelf Life | 12 months in original packaging |
Here are some common examples on where Adheseal Gap Filla Acrylic Sealant used by our customers.
